Santa Rosa in Fall
In fall (March, April and May), Santa Rosa sees average daytime highs around 21°C and overnight lows near 11°C, with 184 mm of rain over about 19 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 27°C in early March to 15°C by late May. The sky is clear or mostly clear about 49% of the time across fall, and the air most often feels dry.
Fall is Santa Rosa's 2nd-best season to visit on our travel score. For the whole year in context, see Santa Rosa's year-round climate.
- Avg daytime high
- 21°C
- 3rd-warmest season
- Avg overnight low
- 11°C
- Rainfall
- 184 mm
- 19 wet days
- Avg wind
- 11 km/h
- Travel score
- 7.0
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Santa Rosa in Fall
Over the season highs ease from about 27°C in early March to 15°C by late May.
A typical fall day in Santa Rosa reaches about 21°C and drops to 11°C overnight. The warmest of the three months is March, the coolest May.
How fall really feels in Santa Rosa
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Santa Rosa weather by month
How the three fall months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 18° | 82 | 9 | 14.2 | 5.6 |
| Feb | 28° / 17° | 81 | 7.9 | 13.4 | 6.4 |
| Mar | 26° / 15° | 86 | 8 | 12.3 | 7.4 |
| Apr | 22° / 11° | 67 | 6.3 | 11.1 | 7.4 |
| May | 17° / 7° | 30 | 5 | 10.1 | 6.2 |
| Jun | 14° / 4° | 17 | 3.3 | 9.5 | 4.8 |
| Jul | 14° / 3° | 19 | 3.7 | 9.8 | 4.6 |
| Aug | 16° / 5° | 27 | 4 | 10.6 | 6.1 |
| Sep | 19° / 7° | 48 | 5.8 | 11.8 | 6.9 |
| Oct | 22° / 11° | 83 | 9.6 | 12.9 | 6.9 |
| Nov | 26° / 14° | 74 | 8.1 | 14 | 7.4 |
| Dec | 29° / 16° | 85 | 8.5 | 14.5 | 6.3 |
Cloud cover in Fall
The sky is clear or mostly clear about 49% of the time across fall.
Chance of precipitation in Fall
Santa Rosa gets around 184 mm of rain over 19 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 11 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 54 min in early March to 9 h 42 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.8 kWh/m².
Is fall a good time to visit Santa Rosa?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is one of the better times to visit Santa Rosa for general sightseeing.
What to pack for Santa Rosa in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Santa Rosa sees daytime highs around 21°C and nights near 11°C. Worth packing: light clothes, a warm layer, rain gear and sun protection. About 19 days see rain.
UV index in Santa Rosa in Fall
Clear-sky midday UV across fall averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa Rosa peaks around January 1 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 9 | 6 | 3 | 2 | 2 | 4 | 5 | 8 | 11 | 13 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 9 | Very high |
| Apr | 6 | High |
| May | 3 | Moderate |
| Jun | 2 | Moderate |
| Jul | 2 | Moderate |
| Aug | 4 | Moderate |
| Sep | 5 | High |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 13 | Extreme |
Where is Santa Rosa?
Santa Rosa sits at 36.6°S, 64.3°W, 163 m above sea level, in Argentina. The nearest listed city is Toay, 10 km away.
Topography around Santa Rosa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Rosa.
Within 3 km, the terrain around Santa Rosa has only modest variations in elevation — a maximum elevation change of 34 m around an average of 180 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 118 m; within 80 km, significant variations in elevation — a maximum elevation change of 274 m.
The land around Santa Rosa is covered by artificial surfaces (59%) within 3 km, cropland (65%) within 16 km, and cropland (59%) within 80 km.
Argentina travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / I
- 220 V · 50 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $14,898
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Homicide rate
- 4.5
- per 100k, 2023
- Road deaths
- 14.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 575
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Santa Rosa (-36.6162°, -64.2899°, elevation 163 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.